A small muscle crossing the wrist. It helps to straighten the thumb and move the thumb away from the fingers. It is attached proximally to the trapezium and scaphoid bones (origin), and distally to ...

A muscle deep in the forearm. It helps to move the forearm sideways from the trunk. Its other actions include abduction and extension of the thumb. It is attached proximally to the posterior surface ...

In the context of skill acquisition, a relatively stable, largely inherited characteristic or trait that underpins and contributes to proficiency in a number of skills. Abilities can be perceptual, ...

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